﻿using System;
using System.Collections.Generic;
using System.IO;

namespace lwzlz.Common.ExcelLibrary.BinaryFileFormat
{
    /// <summary>
    /// This record contains the definition of all user-defined  colours  available for cell and object formatting.
    /// </summary>
    public partial class PALETTE : Record
    {
        public PALETTE(Record record) : base(record) { }

        public PALETTE()
        {
            this.Type = RecordType.PALETTE;
            this.Colors = new List<Int32>();
        }

        /// <summary>
        /// Number of following colours.
        /// </summary>
        public Int16 NumColors;

        /// <summary>
        /// List of RGB colours.
        /// </summary>
        public List<Int32> Colors;

        public override void Decode()
        {
            MemoryStream stream = new MemoryStream(Data);
            BinaryReader reader = new BinaryReader(stream);
            this.NumColors = reader.ReadInt16();
            int count = this.NumColors;
            this.Colors = new List<Int32>(count);
            for (int i = 0; i < count; i++)
            {
                Colors.Add(reader.ReadInt32());
            }
        }

        public override void Encode()
        {
            MemoryStream stream = new MemoryStream();
            BinaryWriter writer = new BinaryWriter(stream);
            writer.Write(NumColors);
            foreach (Int32 int32Var in Colors)
            {
                writer.Write(int32Var);
            }
            this.Data = stream.ToArray();
            this.Size = (UInt16)Data.Length;
            base.Encode();
        }

    }
}
